Walter j



(No Model.)

W. J. HAMMOND & J. GORDON.

, ORE GONGENTRATOB. No. 450,013.

Patented Apr. '7, 1891.

. A TTOHNEYS "m: MKIIS runs 00., Pumo-mna, wuNmaYau u c UNITED ATE PATENT I OFFI E.

WALTER J. HAMMOND AND JOHN GORDON, or RIO DE JANEIRO, BRAZIL.

ORE-CON CE NTRATORJ SPECIFICATION forming part of Letters Patent No. 450,013, dated April 7, 1891.

Application filed July 29, 1890. Serial No. 360,268. (No model.)

,at pr'esent residing in Rio de Janeiro, Brazil,

have invented a'new andlmproved Ore-Concentrator, of which the following is a full, clear, and exact description.

The invention consists, essentially, in a vessel'rotating in a horizontal plane 011 its own vertical axis, which axis is supported on another vertical axis around which it revolves.

The invention also consists in mechanism hereinafter described, whereby the said verticalaxis may be adjusted nearer or farther apart in parallel vertical planes.

The invention also consists in the construction and arrangement of parts hereinafter described.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 isa side elevation of the improvement with parts in section. Fig.2 is asectional plan view of part of the same on the line as 00 of Fig. 1. Fig. dis a side elevation of theimprovement. with parts in section. Fig. 4 is a similar view of a modified form of the improvement, and Fig. 5 is. a like view v of another modified form of the improvement.

This ore-concentrator is based on the fact that if particles are placed in a vesselcontaining-water and the vessel is revolved, its center of gyration lying between the center of gravity and the out-side edge of the vessel, then there will be an interior movement of the particles, by which they will arrange themselves in the order of their specific gravity. It is also well known that water in motion will lift and carry substances of much great-er specific gravity than its own, the velocity of the water determining how heavy a body can be carried. The interior motion of the particles in the vessel among themselves is greatly facilitated by turning the vessel at the same time that it is rotated on-its own axis.

The machine for carrying out this principle is arranged as follows:

r The Ore-concentrator A is provided with a suitably-constructed frame B, in which is journaled the vertical shaft C, connected with suitable machinery for imparting a rotary motion to said shaft. On the shaft 0 is sooured a cone-pulley D, over which passes a belt E, also passing over a cone-pulley F, se-

On the top of the sleeve J.

isformed a ball K, engaged by a correspondingly shaped socket L', formed on the under side of avessel L, preferably having the shape of an inverted cone, is plainly shown in Fig. 1. The outer edge of this :vessel L extends beyond the axis of the shaft G, so that the latter is located between the out-er edge of the vessel and its axis, which is in the center of the ball-joint K L. A rope N is connected by one end with the outer edge of the vessel L, the said rope passing over. a pulley '0, held on one end of the main frame B,

the downwardly hanging end of the rope sup porting a weight P. Now when the shaft G is rotated from the main driving-shaft C the vessel L revolves on account of being mounted on the bar I,'supported by the carrier H, se-

cured on the top of the shaft G, the crankarm being the bar I. At the same time the vessel L is turned on its own axis by being connected with the rope N, carrying the weight P, so that the vessel turns once on its own axis while revolving once. Other suitable mechanism may, however, be employed to impart a faster orslower rotary motion to the vessel L while revolving as above described.

In order to steadythe vessel L while it is revolving and at the sametime to permit of tilting said vessel to discharge-the light sand, two semicircular flanges Q and Q are arranged on the outside of the socket L, one

flange being located a short distancefabove';

the plane of the other and said flanges extending in opposite directions, as is plainly shown in Fig.2. The under side of the flange Q is adapted to travel on a friction-roller R. held on a post ll, secured to the top of the carrier H, the said roller being adapted to be engaged by the top of the flange Q when the vessel L makes its inner half-revolution, the flange Q being engaged while the vessel makes its outer half-revolution.

It will be seen that the sleeve J, supporting the vessel on the bar I, can be adjusted on the latter, so as to increase or diminish the distance between the axis of the vessel and its axis of the shaft G, said distance never, however, being greater than the distance between the outer edge of the vessel and its own axis.

In order to bring the axis of the vessel L nearer to the axis of the shaft G, the carrier II may be made in the form of a crank-arm, as is plainly shown in Fig. 4, so that the axis of thevessel L can be brought into line with the axis of the shaft G. In the construction shown in Fig. 1 it may be desirable to bring the vessel L nearer to the axis of the shaft G; but the friction-roller R, as shown, will not permit of such movement, and in order to do this the post II is preferably made in the shape shown in Fig. 5-that is, bent to one side-so that the sleeve J can be moved close up to the carrier H, the flanges Q and Q then still engaging the f riction-roller R with their outer edges.

The operation is as follows: The vessel L is filled with water and the earth or gravel containing precious metals, and then the main shaft 0 is rotated, so that the shaft G receives a similar motion,and by means of the carrier H the bar I and the sleeve J revolve the vessel L and at the same time turn it around its own axis by being connected with the rope N. This movement of the vessel L causes the water to agitate the earth or gravel, so that the several particles separate from each other according to their specific gravity, the lighter particles passing toward the outer edge and the heavier ones remaining in the center of the bottom of the vessel.

hen the vesselLis in the position shown in Fig. 1, it can be tilted outward, so that the light particles pass over the tilted edge of the vessel.

The speed of the shaft G is changed according to the material treated in the vessel L. The washing and final separation of the material form a subsequent and continuous operation.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In an ore-concentrator, the vessel L, made conical in form and set horizontal and adapted to rotate on its axis, which is sup ported on and revolves around a second and vertical axis, as shown and described, whereby the lighter ore particles are. thrown out and the larger particles are held in the center of the vessel by the action of gravity, thus effecting the desired separation, as specified.

2. In an ore-concentrator, the combination, with a vertical shaft having a transverse arm or bar at its upper end, of a horizontal vessel having a vertical axis on said arm or bar adjustable toward and from the said vert cal shaft, and means for rotating the vessel 1n a horizontal plane on its own axis While it is revolved around the said shaft, substantially as set forth.

3. In an ore-concentrator, the combination of the vessel L, having a central vertical socket on its bottom and two semicircular flanges Q Q, arranged at opposite sides thereof and in different horizontal planes, with a suitable support on which said vessel rotates, a friction-roller for alternately engaging such flanges, and a support for said roller, as shown and described.

l. In an ore-concentrator, the combination, with a vessel mounted to turn, of a sleeve bearing the said vessel on its axis, a bar carrying the said sleeve, which is adjustable thereon, and a shaft carrying the said bar, substantially as shown and described.

5. In an ore-concentrator, the combination, with a vessel mounted to turn, of a sleeve bearing the said vessel on its axis, a bar carrying the said sleeve, a shaft carrying the said bar, and a weighted rope passing over a pulley and connected at one end with the said vessel, substantially as shown and described.

6. In an ore-concentrator, the combination, with a vessel mounted to turn and provided with two semicircular flanges arranged parallel with each other and extending in opposite directions around the axis of the vessel, of means for revolving the said vessel, and a friction-roller adapted to be engaged by the said flanges, substantially as shown and described.

7. In an oreconcentrator, the combination, with a shaft mounted to turn, of a carrier held on the said shaft, a counterbalanced bar supported on the said carrier, a sleeve held adj ustably on the said bar and provided with a ball, and a vessel provided in its axis with a ball-socket adapted to engage the said ball, substantially as shown and described.

8. In an ore-concentrator, the combination,

with a shaft mounted to turn, of a carrier held on the said shaft,'a counterbalanced bar supported on the said carrier, a sleeve held adjustably on the said bar and provided with a ball, a vessel provided in its axis with a ball-socket adapted to engage the said ball, and a weighted rope connected with the said vessel and passing over a pulley, substantially as shown and described. I

9. In an ore-concentrator, the combination,

with a shaft niountedto tnrn,of a carrier held adapted to be engaged by the said flanges, on the said shaft, aeounterhalaneed bar supsubstantially as shown and described. ported on the said carrier, a sleeve held ad- 1 1 J 4 jnstably on the said bar and providedwith a g gbg 5 ball, a vessel provided in its axis with a ballsocket adapted to engage the said ball, a W'itnesses for Valte'r .J. Hammond: weighted rope connected with the said vessel EDWARD lV. VVYSARD, and passing over a pulley, semicircular I. H. CHALK. flanges extending parallel with each other and Witnesses for John Gordon: -'0 in opposite directions on the ball-joint, anda THEO. G. HosTER,

friction-roller held on the said carrier and O. SEDGWIOK. 

